let info = {
    name: 'yimwu',
    tel: '134xxxxx320',
    address: {
        home: 'jy',
        company: 'gz'
    }
}

let infoCopy = JSON.parse(JSON.stringify(info))
infoCopy.name = "zhuhaoran"
infoCopy.address.home="安徽"
console.log(info)  //不改变
console.log(infoCopy)  //改变